I realize I am in a limited market but have been unable to find a solution.
ZCM 11.2.0, 11.2.1 and 11.2.2 MU1. I believe it worked in 11.1.0 (memory fails me often)

Windows XP SP3 in conjuntion with NComputings x550. A simple shortcut being pushed out via ZCM bundle shows up but will not run. I am simply trying to push out an internet shortcut to the desktop and it will not work for the x550 client machines. The Host machine works fine, on the client machines the following error is logged:

Failed to process action: Object reference not set to an instance of an object.

The same bundle/shortcut will work on my Windows 7 64bit Hosts and clients, but does not work with windows XP. I have tried to also create a bundle to launch a simple network application. Again it works in Win7, but not with XP.